Combined molecular and morphological data provide insights into the evolution and classification of Chilocorini ladybirds (Coleoptera: Coccinellidae),Systematic Entomology

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Combined molecular and morphological data provide insights into the evolution and classification of Chilocorini ladybirds (Coleoptera: Coccinellidae)
Systematic Entomology ( IF 4.7 ) Pub Date : 2019-12-10 , DOI: 10.1111/syen.12409
Wenjing Li _{1,

2} , Piotr Łączyński ₃ , Hermes E. Escalona _{4,

5} , Jonas Eberle ₄ , Lizhi Huo ₆ , Xiaosheng Chen ₁ , Weidong Huang ₁ , Bingxu Chen ₂ , Dirk Ahrens ₄ , Adam Ślipiński ₅ , Wioletta Tomaszewska ₃ , Xingmin Wang ₁

Affiliation

Ladybirds of the cosmopolitan tribe Chilocorini prey mainly on coccids and include several important biocontrol agents. The phylogenetic relationships of Chilocorini are poorly known. In this paper, we provide a phylogenetic reconstruction of Chilocorini containing all 27 genera based on five molecular markers and 86 adult morphological characters. Morphological character states were mapped on the combined data tree from Bayesian inference to analyse morphological traits of each genus. Sixteen morphological characters were selected to reconstruct the ancestral states using maximum parsimony and maximum likelihood methods. Divergence times were estimated based on the relaxed molecular clock approach. Our results indicate that Chilocorini, excluding Chilocorellus Miyatake, is monophyletic and closely related to Plotinini. The crown group Chilocorini was estimated to date back to the Middle Cretaceous. Anisorcus Crotch, Egius Mulsant, Phaenochilus Weise and Simmondsius Ahmad & Ghani are synonymized here with Chilocorus Leach (syn.n.). The genus Chilocorellus is excluded from Chilocorini. The split of current genera was estimated to have occurred during the Middle Paleogene to Late Paleogene.

中文翻译：

结合分子和形态学数据提供对 Chilocorini 瓢虫（鞘翅目：瓢虫科）进化和分类的见解

世界性部落 Chilocorini 的瓢虫主要以球虫为食，包括几种重要的生物防治剂。Chilocorini 的系统发育关系知之甚少。在本文中，我们基于五个分子标记和 86 个成虫形态特征提供了包含所有 27 个属的 Chilocorini 的系统发育重建。形态特征状态被映射到来自贝叶斯推理的组合数据树上，以分析每个属的形态特征。使用最大简约和最大似然方法选择了 16 个形态特征来重建祖先状态。基于松弛分子钟方法估计发散时间。我们的结果表明 Chilocorini，不包括 Chilocorellus Miyatake，是单系的，与 Plotinini 密切相关。据估计，冠群 Chilocorini 的历史可以追溯到中白垩纪。Anisorcus Crotch、Egius Mulsant、Phaenochilus Weise 和 Simmondsius Ahmad & Ghani 在此与 Chilocorus Leach (syn.n.) 同义。Chilocorini 属不包括 Chilocorini。目前属的分裂估计发生在古近纪中期至古近纪晚期。

更新日期：2019-12-10

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